Fairplay,
In this particular case I don't think posting on the web is unprofessional. This particular studio appears to thrive on internet business and is able to exploit the distances between each party, so what other defense do freelancers have, except post their experiences with the company?
I would also be very careful to just post the facts. You are having problems getting paid and are just posting your experiences with the company. Leave it at that. Don't draw your own conclusions in a public forum like this, especially when you are the only case you know of with this problem. There might be others, but let them come forward first.
Don't post names of individuals, your issue is with the company. You also have no issue if you get paid, but if you harm this person (reputaton), the bell has already been rung. Here is a possible scenerio:
The studio is having financial problems (as assumed by links).
The indivdual is as puzzled as you that you did not recieve payment, so they talk to accounting.
Accounting doesn't have the funds to pay everyone, so they gave the individual a story. You are probably at the bottom of the list since "local" creditors could yank equipment any day. The main production crew is drawing a paycheck, so they have to pay them first.
The producer knows you aren't sending the remaining work without getting paid, so they gave that job to someone else. Even if they wanted to pay you, but can't until some future date, they can't hold up production.
So the individual is told "those guys (you) are holding up production, we can't wait on this stuff so we gave it to someone else. We aren't going to pay for work they didn't do." This is all half truths, but the indivudual might be in the dark as much as you. Or, they know the truth, but have no control over paying you.
This might all be $%^&, but I hope this shows that it is better not to focus on an individual. Again, remember you are just trying to get paid. Why burn bridges if it isn't necessery?
If none of my post seems reasonble, then reverse everything. Assume the studio or the indivudla posted first with the exact sqme emails? You would expect others to just post the facts, so it is only fair that you do the same for others, even if you are totally right.
Respectfully,
Urp